@article{Dan_An_2014, title={Influence of Annealing Conditions on Structure and Critical Parameters of Ni50Mn37Sn13 Magnetocaloric Material}, volume={24}, url={https://vjs.ac.vn/index.php/cip/article/view/2862}, DOI={10.15625/0868-3166/24/1/2862}, abstractNote={<p>In this paper, we present the influence of annealing conditions on structure and magnetic behavior of Ni\(_{50}\)Mn\(_{37}\)Sn\(_{13}\) magnetocaloric alloy prepared by arc-melting technique. The results show that the almost single phase of the full Heusler structure of Ni\(_{2}\)MnSn could be achieved by appropriate annealing. The transformation between martensite and austenite phases, and multi-magnetic phase behavior are observed more clearly with higher fraction of Ni\(_{2}\)MnSn phase. By using Arrott-Noaks method, critical parameters were determined to be \(\beta   0.464 \pm  0.021\), \(\gamma  = 1.117 \pm  0.073\) and \(\delta  = 3.41\), which lay between mean-field model (\(\beta  = 0.5\) and \(\gamma = 1\), \(\delta  = 3\)) with long-range ferromagnetic orders and 3D Heisenberg model (\(\beta  = 0.365\), \(\gamma = 1.336\), \(\delta {\rm g}= 4.66\)) with short-range ferromagnetic orders. The calculated results are in good accordance with the experimentally observed coexistence of weak-ferromagnetic martensite and strong-ferromagnetic austenite phases.</p>}, number={1}, journal={Communications in Physics}, author={Dan, Nguyen Huy and An, Nguyen Manh}, year={2014}, month={Mar.}, pages={79} }